Tensile strength International standard,270-500N/mm2(actually less narrow than this extent) Broken extension rate International standard,more than 22%(actually higher than this value) Height of zinc layer In the range of 40-275g/m2 supplied by mutual agreement reached by two parts. Conglutination property of zin layer When center diameter is 0,180 cold-bending zero-zinc lawyer starts to break and come off. 3-10mt/coil. Mill's standard seaworthy export packing under waterproof paper/plastic foil and steel packing suitable for ocean transportation, securely strapped with metal bands, min 4 bands horizontal and min 3 bands longitudinal.